1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SIZIF [17.4K]
4 years ago
14

If a stereo has a dial that changes the volume of sounds the stereo makes what is the dial doing

Physics
2 answers:
Serggg [28]4 years ago
5 0

Answer:

Changing the amplitude of the sound waves

Explanation:

vredina [299]4 years ago
4 0
The volume dial is acting as a voltage divider or a variable resistor. 
You might be interested in
A bug is sitting on the edge of a rotating disk. At what angular velocity will the bug slide off the disk if its radius is 0.241
Ivahew [28]

Answer:

ω = 3.61 rad/sec

Explanation:

Firstly, we should know that the bug will not slip if friction can provide sufficient opposing force.

μmg = mv^2/r = mω^2r

Thus;

μg = ω^2r

ω^2 = μg/r

ω = √(μg/r)

ω = √(0.321 * 9.8)/0.241

ω = √(13.05)

= 3.61 rad/sec

3 0
3 years ago
What is the change in length of a 1400. m steel, (12x10^-6)/(C0) , pipe for a temperature change of 250.0 degrees Celsius? Remem
8090 [49]

Answer:

\Delta L = 4.2 m

Explanation:

As per the formula of thermal expansion we know that

L = L_o(1 + \alpha\Delta T)

so here we will have

L_o = 1400 m

\alpha = 12 \times 10^{-6} per ^oC

\Delta T = 250 degree C

so here change in the length of the rod is given as

\Delta L = L - L_o

\Delta L = L_o \alpha \Delta T

\Delta L = 1400 (12 \times 10^{-6})(250)

\Delta L = 4.2 m

8 0
3 years ago
Earth's subsystems are the geosphere, atmosphere, hydrosphere, and biosphere. Energy and matter are transferred when Earth's sub
Leona [35]

Answer:

ok

Explanation:

The Earth is made of several subsystems or "spheres" that interact to form a complex and continuously changing whole called the Earth system. Scale

Processes operating in the Earth system take place on spatial scales varying from fractions of millimeters to thousands of kilometers, and on time scales that range from milliseconds to billions of years.

Examples of instantaneous - breathing; rotation of the Earth; earthquake

Examples of long term - making coal; plate tectonics

Cycles

The Earth system is characterized by numerous overlapping cycles in which matter is recycled over and over again. Cycles involve multiple spheres and systems interactions.

Examples of cycles: day and night; rock cycle; seasons

Energy

The Earth system is powered by energy from two major sources: the Sun and the planet's internal heat.

Humans and the Earth System

People are part of the Earth system and they impact and are impacted by its materials and processes.

6 0
3 years ago
The average distance from earth to the sun is 150 megameters. what is that distance in meters?
alexira [117]
It is 150,000,000 meters!!
7 0
3 years ago
PLZ SOMEONEE HELPP I’LL MARK BRANLIESTTTT
7nadin3 [17]

Answer:

I'm pretty sure it's 37.5 joules of energy

Explanation:

hope this helps!

8 0
3 years ago
Other questions:
  • If you pay him $200 up front, Freddie promises to paint your garage. But you'd be crazy to pay him anything up front because Fre
    5·1 answer
  • Carole owns a two story house with a heating and cooling unit on each floor. in the winter she mostly uses the downstairs unit b
    8·1 answer
  • How many gallons of water per day does the average American family of 4 use?
    13·2 answers
  • A planet has two
    7·1 answer
  • Which three of these statements about current and voltage in a series circuit are true ?
    7·1 answer
  • Light striking a metal surface causes electrons to be emitted from the metal via the photoelectric effect.In a particular experi
    15·1 answer
  • A Danish astronomer who used the diameter of the earth's orbit in his calculation of the speed of light was .
    14·2 answers
  • Please help me ! <br> I have only 5 minutes left!
    12·1 answer
  • If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, the ball with the m
    7·1 answer
  • SOMEONE WHO KNOWS AND CAN HELP WITH ACCELERATION AND VELOCITY PLEASE HURRY HELP
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!